Straightening crosses while tensioning

I use an electric constant pull machine. This also happens when I use a manual lockout. When I pull my crosses they do not stay straight. They curve downwards towards the throat of the racquet.

To counter this I straighten each cross while it is tensioning before I clamp it. What is the effect of doing this? Each cross seems to be getting more tension because it is being tensioned longer while I straighten it before I clamp it. Is this bad for the frame? Should I wait to straighten the crosses until I am done stringing the racquet? Should I not bother at all?

I have found that pre-weaving more that one string ahead doesn't give me any speed increase.

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I used to do that too, and you're right, it really doesn't save a whole lot of time.

I tension the crosses twice. Because on the 1st pull, the crosses aren't straight and if I were to straighten out the cross, I've given it slack. So I release and pull for a 2nd time. Nice and straight.

I use an electric constant pull machine. This also happens when I use a manual lockout. When I pull my crosses they do not stay straight. They curve downwards towards the throat of the racquet.

To counter this I straighten each cross while it is tensioning before I clamp it. What is the effect of doing this? Each cross seems to be getting more tension because it is being tensioned longer while I straighten it before I clamp it. Is this bad for the frame? Should I wait to straighten the crosses until I am done stringing the racquet? Should I not bother at all?

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According to a manual I have here, USRSA tests showed straightening crosses while pulling tension increased 6% on electronic continuous pull machines and 3% on spring tension machines